Reverting Firefox location bar search back to Google

For some reason, my Firefox location bar search had changed to Babylon search.

To change it back:
Open Firefox
In the addressbar, type “about:config”
Type: keyword.URL
The current keyword.URL is a link to Babylon:

It should be changed back to the default:

You are reading this post on Joel G Mathew’s tech blog. Joel's personal blog is the Eyrie, hosted here.